Home / 7,505.45-11,257.76-3,807.57

Finding the Fourth Proportional to 7,505.45, 11,257.76 and 3,807.57

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Solution

The fourth proportional to 7,505.45, 11,257.76 and 3,807.57 is: 5,711.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,505.45 : 11,257.76 = 3,807.57 : x
  2. Step 2: Convert to fraction form
    7,505.45/11,257.76 = 3,807.57/x
  3. Step 3: Cross multiply
    7,505.45x = 11,257.76 × 3,807.57
  4. Step 4: Simplify right side
    7,505.45x = 42,864,690.21
  5. Step 5: Solve for x
    x = 42,864,690.21/7,505.45
  6. Step 6: Final answer
    x = 5,711.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.